| Autor: |
Ren, Xiaolin, 任, 晓琳, Sutarto, Ronny, Gao, Qiang, 高, 强, Wang, Qisi, 王, 奇思, Li, Jiarui, 李, 佳睿, Wang, Yao, 王, 耀, Xiang, Tao, 向, 涛, Hu, Jiangping, 胡, 江平, Chang, J., Comin, Riccardo, Zhou, X. J., 周, 兴江, Zhu, Zhihai |
| Předmět: |
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| Zdroj: |
Chinese Physics Letters; Nov2024, Vol. 41 Issue 11, p1-7, 7p |
| Abstrakt: |
Research of infinite-layer nickelates has unveiled a broken translation symmetry, which has sparked significant interest in its root, its relationship to superconductivity, and its comparison to charge order in cuprates. In this study, resonant x-ray scattering measurements were performed on thin films of infinite-layer PrNiO2+ δ . The results show significant differences in the superlattice reflection at the Ni L 3 absorption edge compared to that at the Pr M 5 resonance in their dependence on energy, temperature, and local symmetry. These differences point to two distinct charge orders, although they share the same in-plane wavevectors. It is suggested that these dissimilarities could be linked to the excess oxygen dopants, given that the resonant reflections were observed in an incompletely reduced PrNiO2+ δ film. Furthermore, azimuthal analysis indicates that the oxygen ligands likely play a crucial role in the charge modulation revealed at the Ni L 3 resonance. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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